W3C:

2008-04-03: The XML Core Working Group has published the Last Call Working Draft of XML Linking Language (XLink) Version 1.1. This specification defines the XML Linking Language (XLink) Version 1.1, which allows elements to be inserted into XML documents in order to create and describe links between resources. It uses XML syntax to create structures that can describe links similar to the simple unidirectional hyperlinks of today’s HTML, as well as more sophisticated links. Comments are welcome through 16 May. Learn more about the Extensible Markup Language (XML) Activity. (Permalink)